Home / 1,473.93-2,209.41-857.79

Finding the Fourth Proportional to 1,473.93, 2,209.41 and 857.79

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Solution

The fourth proportional to 1,473.93, 2,209.41 and 857.79 is: 1,285.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,473.93 : 2,209.41 = 857.79 : x
  2. Step 2: Convert to fraction form
    1,473.93/2,209.41 = 857.79/x
  3. Step 3: Cross multiply
    1,473.93x = 2,209.41 × 857.79
  4. Step 4: Simplify right side
    1,473.93x = 1,895,209.80
  5. Step 5: Solve for x
    x = 1,895,209.80/1,473.93
  6. Step 6: Final answer
    x = 1,285.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.